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  • Iran  (18)
  • Identification  (6)
  • Marine  (4)
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  • 1
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    Identification of larval stages of lantern fish in Iranian waters of Oman Sea (2017)
    Details
    Publication Date: 2021-05-19
    Description: The fish larvae identification survey was carried out in Iranian waters of Oman Sea from Hormuz strait to Gwader Bay in 2009 at pre and post monsoon periods. Sampling was done by plankton net with 300 μ mesh size. Totally, 168 specimens were collected that belong to the three genera; Benthosema، Diaphus and Lampadena. Two species named Benthosema pterotum, B.fibulatum were identified. B.pterotum has pigment on the tip of the lower jaw and snout whereas B .fibulatum lacks these discriminative characters. Two genera Diaphus and Lampadena have a row of melanophores in post-anal region ventrally which discriminate them from Benthosema. Diaphus is separated from Lampadena with a small melanophore at the hypural.
    Description: Published
    Keywords: Myctophidae ; Benthosema ; Diaphus ; Lampadena ; Larvae ; Identification
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.41-51
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  • 2
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    Review Papers:Species diversity and distribution pattern of marine mammals of the Persian Gulf and Gulf of Oman - Iranian Waters (2018)
    Details
    Publication Date: 2021-05-19
    Description: A total of 98 marine mammal records from Iranian coastal waters of the Persian Gulf and Gulf of Oman were compiled of which 66 are previously unpublished new records. Seventy-nine were from the Persian Gulf and 16 from the Gulf of Oman coast. The largest numbers of records were from Qeshm Island and Bushehr Provinces. Records of finless porpoise (Neophocaena phocaenoides), Indo-pacific humpback dolphin (Sousa chinensis) and Indo-pacific bottlenose dolphin (Tursiops aduncus) were by far the most numerous probably reflecting their inshore distribution and local abundance. Other species recorded are common dolphin (Delphinus capensis tropicalis), rough-toothed dolphin (Steno bredanensis), Risso’s dolphin (Grampus griseus), false killer whale (Pseudorca crassidens), and dugong (Dugong dugon). Evidence of 22 Mysticetes were obtained eight of which were tentatively identified as Bryde’s whales (Balaenoptera edeni), three as fin whales (Balaenoptera physalus) and three as Humpback whales (Megaptera novaeangliae). The largest threat to marine mammals in Iran is likely to be incidental capture in fishing gear. Six by caught finless porpoises were recorded and this species may be particularly vulnerable to incidental mortality in gillnets. Recommended marine mammal research, conservation and management small projects in Iran are described.
    Description: Published
    Keywords: Ecology ; Neophocaena phocaenoides ; Sousa chinensis ; Tursiops aduncus ; Delphinus capensis tropicalis ; Steno bredanensis ; Grampus griseus ; Pseudorca crassidens ; Balaenoptera edeni ; Balaenoptera physalus ; Megaptera novaeangliae ; Marine mammals ; Species diversity ; Distribution patterns ; Species ; Marine
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.927-944
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  • 3
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    Species identification of Sillaginid larvae (Perciformes: Sillaginidae) in the central creeks of Bushehr province – Persian Gulf using morphological and DNA barcoding mothods (2017)
    Details
    Publication Date: 2021-05-19
    Description: Sillaginids are one of the important fishes in coastal waters of Persian Gulf, whose larvae of different species are morphologically very similar to each other and identification of them to species level is very difficult. In this study a total of 4195 Sillaginidae larvae were collected from five inlets (Shif, Lashkari, Ramleh, Dubbeh, Farakeh) and one sampling site in the coastal area of Bushehr Province using a Bongo-net. Morphological and genetic methods were used to identity larvae of this family. The larvae were morphologically divided into two groups, depending on 34 or 38 myomers. The larvae with 34 myomeres were identified as Sillago sihama. To identify larvae with 38 myomers, 12 individuals of postflexion larvae were selected and the morphological characteristics such as number of dorsal and anal fins as well as DNA barcoding of COI were used. According to morphological characteristics, the larvae were divided into two species; Sillago arabica and Sillago attenuata. Genetic studies were done by sequencing of 625 base pair of COI gene. Genetic distances calculated using K2P model between these two species was 18% to 19.7% which indicate that DNA barcoding confirms morphological method and it can be used for identifying younger larvae whose fin rays have not been developed and are unidentifiable with morphological methods.
    Description: Published
    Keywords: Sillaginid ; Perciformes ; Sillaginidae ; Sillago arabica ; Sillago attenuata ; Sillago sihama ; Cytochrome oxidase subunit ; Species ; Identification ; Larvae ; DNA ; Morphological ; Methods ; Fish ; Genetic
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.1-10
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  • 4
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    Identification of Plathycephalidae Species in Bushehr Province Waters (the Persian Gulf) (2018)
    Details
    Publication Date: 2021-05-19
    Description: During the conducted cruises for implementation of projects entitling, "Studying Shrimp Nursery in Bushehr Esturies" and "Assessment of Bentic Stocks through Swept Area Method" in Iranian waters of the Persian Gulf, some samples of aquatics were collected. Among the collected samples the species belonging to Platycephalidae were identified in the region and are included: Platycephalus indicus, Grammoplites suppositus, Grammoplites scaber G. suppositus had more abundance than two other species (56%) and P. indicus had the largest size of total length.
    Description: Published
    Keywords: Plathycephalidae ; Platycephalus indicus ; Grammoplites suppositus ; Grammoplites scaber ; Grammoplites suppositus ; Fish ; Species ; Identification ; Abundance ; Bentic ; Area
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.33-48
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  • 5
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    Diversity and abundance of ichthyoplanktons in Gouater area (coastal waters of Sistan &Baluchistan province) (2018)
    Details
    Publication Date: 2021-05-19
    Description: Ichthyoplanktons were identified and their abundance was determined in Gouater Creek &Bay, north-west of Oman Sea. Sampling was carried out from October 2005 to September 2006 and specimens were collected from six stations using single ring plankton net with 333k mesh size. Stations including: close to coastal waters (1, 2, 4), into creek (5 and 6) and close to Bahookalat creek out flowing waters (station 3). Measurement of the environmental factors showed that an average depth 4m, transparency was 75cm, salinity 37.08g/l, pH 8.19, water temperature 27.3C for the study area. Totally, 585 specimens of diverse fish larval stages were collected in 20 sampling efforts with mean abundant of 11.682 numbers/10m super(2). A total of 11 fish families were identified in the samples in which the dominant families larvae were Gobiidae, Clupeidae and Engraulidae with mean abundant of 6.875, 2.465 and 0.733 numbers/10m super(2) respectively and the total abundance specimens of fish larvae were 86%. The most of the mean abundant fish larvae were observed in winter (27.712 numbers/10m super(2)) and the least were recorded in autumn (3.724 numbers /10m super(2)). The larval stage of the specimens was mostly Preflexion (87%) that shows the area is a nursery ground for the species. No correlation was found between abundance and temperature and salinity. Comparison of abundance showed a significant difference between stations 1, 3 and 5 with stations 2, 4 and 6 and also, winter by other seasons. The difference in diversity from pre monsoon and post monsoon periods was significant (P〉0.05).
    Description: Published
    Keywords: Ichthyoplankton ; Environmental factors ; Species diversity ; Fish larvae ; Marine
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.55-64
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  • 6
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    Identification, land use planning and ecological standard classification of habitats, stations and centers of genetics resources of Iran south province (Persian Gulf – Gulf of Oman) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The coastal area of the water and drought graft area and the common area of the performance of two ecosystems with separate characteristics are one another. Coastal environment is a natural evolutionary system that includes the most complex and, at the same time, the richest ecosystems on the planet. This region is a transitional and highly vulnerable region and is endangered by the accumulation of pollutants due to the acceptance of drought and marine pollutants. Marine pollution and the effects of drought activities that are the result of socioeconomic development on the coastline and its catchments are one of the most important issues in most of the world, which directly affects coastal habitats. According to research conducted in Iran on identifying areas and sensitive resources, these areas and resources are divided into two distinct groups: 1) The group of biologically sensitive resources: includes mangrove forests, coral reefs, marine turtles, aquatic birds, marine plants and marine mammals. 2) The group of sensitive physical resources: includes the physical building of beaches in the sub-sections of mud, sand, rocky and hydrographic forms of shores in aquatic, estuarine, clay and small bay.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Aquatics habitats ; Coastal sensetive area ; Pollutants ; Marine ; Identification ; Genetic
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 98pp.
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  • 7
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    Identification of larval stages of lantern fish in Iranian waters of Oman Sea (2021)
    In:  http://aquaticcommons.org/id/eprint/21991 | 18721 | 2018-01-21 11:43:36 | 21991 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-06
    Description: The fish larvae identification survey was carried out in Iranian waters of Oman Sea from Hormuz strait to Gwader Bay in 2009 at pre and post monsoon periods. Sampling was done by plankton net with 300 μ mesh size. Totally, 168 specimens were collected that belong to the three genera; Benthosema، Diaphus and Lampadena. Two species named Benthosema pterotum, B.fibulatum were identified. B.pterotum has pigment on the tip of the lower jaw and snout whereas B .fibulatum lacks these discriminative characters. Two genera Diaphus and Lampadena have a row of melanophores in post-anal region ventrally which discriminate them from Benthosema. Diaphus is separated from Lampadena with a small melanophore at the hypural.
    Keywords: Biology ; Fisheries ; Larvae ; Myctophidae ; Identification ; Oman Sea ; Iran ; Benthosema ; Diaphus ; Lampadena ; Benthosema pterotum
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 41-50
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  • 8
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    The effect of monsoon on fish larva assemblage changes in Gowatr Bay, North Oman Sea (2021)
    In:  http://aquaticcommons.org/id/eprint/22697 | 18721 | 2018-05-16 18:28:55 | 22697 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-09
    Description: The study and research of abundance and diversity variation of fish larva (Ichthyoplankton stages) was done in Gowatr Bay during autumn 2006 - summer 2007. Five stations were selected for sampling, and Bongo-Net with 300µ mesh size was towing from bottom to surface. During of survey, totally 531 larvae belong to 11 families were collected and identified. The mean abundance estimated 12.17 larvae per 10 m^2, in which three fish larva family including: Gobiidae, Clupeidae and Engraulidae were dominant (86% of relative abundance). The result showed that there was significant differences between pre and post-monsoon fish larvae abundances (p〈.05), and there were not significant differences between stations (p〉.05). In pre-monsoon 4 families were identified of which Clupeidae introduced as indicator group, whereas in post-monsoon 10 families were identified and Gobiidae was indicator family, accompany with increase of diversity. PCA result was shown, temperature as the main factor affected on fish larvae assemblage was found with a significant decrease of 11.9 °C after monsoon phenomenon.
    Keywords: Biology ; Fisheries ; Fish larva ; Indicator family ; PCA ; Monsoon ; Gowatr Bay ; Oman Sea ; Iran ; abundance ; Ichthyoplankton ; mesh size
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 427-436
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  • 9
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    Short communication: Ecological larval fish groups in Chabahar Bay in relation to day/night and monsoon variations (2021)
    In:  http://aquaticcommons.org/id/eprint/22977 | 18721 | 2018-06-08 22:18:10 | 22977 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-12
    Description: Studies on larval fish abundance allow important inferences about the spawning grounds, reproduction season and migration pattern of fishes. Larval densities can also be used to estimate the abundance index, which in turn can be correlated to the fisheries yield, and provide an alternative approach for measuring the size of the spawning stock. Previous studies in this ecosystem have focused on the abundance of fish larva without consideration of daily fish larva variations. ... In this research we consider the monsoon as an important phenomenon, affecting the daily fish larval distribution.
    Keywords: Biology ; Ecology ; Environment ; Fisheries ; Larval fish ; Ecological groups ; Day/night ; Monsoon ; Ecology ; Chabahar Bay ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 1609-1615
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  • 10
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    Species identification of Sillaginid larvae (Perciformes: Sillaginidae) in the central creeks of Bushehr Province – Persian Gulf using morphological and DNA barcoding methods (2021)
    In:  http://aquaticcommons.org/id/eprint/22092 | 18721 | 2018-02-02 14:19:32 | 22092 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-06-25
    Description: Sillaginids are one of the important fishes in coastal waters of Persian Gulf, whose larvae of different species are morphologically very similar to each other and identification of them to species level is very difficult. In this study a total of 4195 Sillaginidae larvae were collected from five inlets (Shif, Lashkari, Ramleh, Dubbeh, Farakeh) and one sampling site in the coastal area of Bushehr Province using a Bongo-net. Morphological and genetic methods were used to identity larvae of this family. The larvae were morphologically divided into two groups, depending on 34 or 38 myomers. The larvae with 34 myomeres were identified as Sillago sihama. To identify larvae with 38 myomers, 12 individuals of postflexion larvae were selected and the morphological characteristics such as number of dorsal and anal fins as well as DNA barcoding of COI were used. According to morphological characteristics, the larvae were divided into two species; Sillago arabica and Sillago attenuata. Genetic studies were done by sequencing of 625 base pair of COI gene. Genetic distances calculated using K2P model between these two species was 18% to 19.7% which indicate that DNA barcoding confirms morphological method and it can be used for identifying younger larvae whose fin rays have not been developed and are unidentifiable with morphological methods.
    Keywords: Biology ; Fisheries ; cytochrome oxidase subunit I ; fish identification ; Sillago arabica ; Sillago attenuata ; Sillago sihama ; Iran ; Bushehr province ; Persian Gulf ; DNA ; Species ; identification
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 1-10
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